Entanglement Entropy of Conformal Field Theory in All Dimensions
arXiv:2506.02786 · doi:10.1007/JHEP01(2026)015
Abstract
We provide a field-theoretic method to calculate entanglement entropy of CFT in all dimensions. This method works for entangling surfaces of arbitrary shape. The formalism manifests a field-theoretic proof of the Ryu-Takayanagi formula.
V3: modified fig3 and rewrote sec V. V2: Substantially improved for readability. Some clarifications made. 14 pages, 6 figures